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| regional coefficient | |||
| coefficient of region; zonal coefficient; zoning factor; zone factor | |||
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区域系 数 : 9 phrases in 6 subjects |
| Aviation | 1 |
| Earth sciences | 1 |
| Ecology | 1 |
| Electronics | 1 |
| Name of organization | 1 |
| Technology | 4 |
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